https://ru.scribd.com/document/804957333/137-ancient-human-genomes-from-across-the-Eurasian-steppes-2
Tagar Scythians possessed R1a-Z93 (Z2125) and Q1a2-L933 lineages. The latter is now found in Kerala (southern tip of India!), Yemen, Georgia, Turkey, Czechia and Britain! Apart from the slightly older Indian sample, all have a TMRCA between 5000 and 6000 years, so probably of Steppic origin. It's amazing how far the Scythians migrated and, above all, how wide their geographic reach was, leaving descendants from southern India to Britain and from Siberia to Yemen. And that's just for Siberian Scythians! (as Q1a2 wasn't found in Central Saka or European Scythians).
- Central Scythians (Saka) belonged to R1a-Z93 (YP1456), Q1b2-YP4500 (same as in Tian Shan Huns) and E-M123 (Y31991, now found in Poland, Bulgaria, Lebanon and Qatar) velislav papa 
- The four XiongNu samples only carried O3 and Palaeolithic branches of R1b (not of Indo-European origin).